The muscles that run diagonally between each rib (also known as rib cage abs). Intercostals help to control the expansion and contraction of your rib cage when you breathe. A - E |•| F - J |•| K - O |•| P - T |•| U - Z

The muscles between the ribs. These muscles are important to deep breathing.

Muscles between the ribs that can augment breathing movements by elevating and suppressing the rib cage.